- Primary Aim 1. Assess the effectiveness of a large-scale, two-arm CRC screening program among diverse CLINIC patients, and assess difference in CRC screening outcomes (overall and by age, sex, insurance status, Hispanic ethnicity/race). The intervention will consist of an automated data-driven, EHR-linked program for mailing FIT kits (with linguistically appropriate pictographic instructions and return postage) to patients due for CRC screening.